CONVERT_VA

	 This directory contains a program that will return the physical
	address of a specified virtual address. Ths program as it is, isn't
	very useful, but is a good example of calling a routine in kernel
	mode. The routine GET_PHY_ADDR will translate any virtual address
	to it's corresponding physical address. It does however, make the
	assumption that the virtual address is valid, and that it is locked
	into memory. This routine can be incorporated into any program that
	needs it. Most of the restrictions of this program are because the
	page containing the address to translate is locked down in user
	mode, so only process addresses can be translated. To make this
	more general, another kernel mode routine would be needed to validate
	the given virtual address, and if it is not an I/O page, then it
	should be locked down. 

	 This program was written as an example for the pre-symposium
	seminar 'BLISS for Macro users', so everything is written in BLISS.

			Brian Catlin	Jim Gray
				4-MAY-1990